What You Need to Know
When hot agar solution (1-2% w/v) contacts cold oil (4-10°C), rapid surface gelation occurs via hydrogen bond formation between agarose helices, trapping liquid centers within semi-permeable membranes. The temperature differential between the phases drives immediate polysaccharide network formation at the interface.
Provides chefs with a versatile textural element that pops like real caviar, while allowing complete flavor customization through the infused liquid.
Key Parameters
Temperature
40°C
35°C - 45°C
Time
1 minute
30 seconds - 2 minutes
Equipment
Steps
- 1.
Vegetarian sushi (Japanese fusion cuisine): Provides convincing caviar substitute for vegan nigiri
- 2.
Molecular cocktails (Modern mixology): Alcohol-resistant spheres that burst with flavor
The Science
Primary Reaction
Thermoreversible gelation of agarose